Ok you wont believe me, but this method shrunk my megaloceros! Get an argy with a saddle, pick up the deer with someone riding it, and it will shrink the deer and the tribemate! It works! I did it and when I ride it it looks like torture! Try it!
These guys deserve more attention! Great harvesters, powerfull-ish if it's a high level, fun to have around, and if you are a Canadian you NEED to ride it!